Bristle arrangement for the head of a toothbrush



FIG. 1 is a front-lateral perspective view of the bristle arrangement for the head of a toothbrush;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is an end elevational view taken from the handle end; and,

FIG. 6 is an end elevational view taken from the head end. 

The ornamental design for a bristle arrangement for the head of a toothbrush, as shown. 